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# Makefile for making bootable images on various OpenFirmware machines.
#
# Paul Mackerras January 1997
# XCOFF bootable images for PowerMacs
# Geert Uytterhoeven September 1997
# ELF bootable iamges for CHRP machines.
# Tom Rini January 2001
# Cleaned up, moved into arch/ppc/boot/pmac
# Tom Rini July/August 2002
# Merged 'chrp' and 'pmac' into 'openfirmware', and cleaned up the
# rules.
zImage.initrd znetboot.initrd: del-ramdisk-sec := -R .ramdisk
zImage.initrd znetboot.initrd: initrd := .initrd
boot := arch/ppc/boot
common := $(boot)/common
utils := $(boot)/utils
bootlib := $(boot)/lib
of1275 := $(boot)/of1275
images := $(boot)/images
CHRP_LD_ARGS := -T $(srctree)/$(boot)/ld.script -e _start -Ttext 0x00800000
COMMONOBJS := start.o misc.o common.o
CHRPOBJS := crt0.o $(COMMONOBJS) chrpmain.o
targets := $(CHRPOBJS) dummy.o
CHRPOBJS := $(addprefix $(obj)/, $(CHRPOBJS))
LIBS := lib/lib.a $(bootlib)/lib.a $(of1275)/lib.a $(common)/lib.a
ifdef CONFIG_SMP
END := .smp
endif
ifdef CONFIG_PPC64BRIDGE
END += .64
endif
$(images)/ramdisk.image.gz:
@echo ' MISSING $@'
@echo ' RAM disk image must be provided separately'
@/bin/false
quiet_cmd_genimage = GEN $@
cmd_genimage = $(OBJCOPY) -R .comment \
--add-section=.image=$(images)/vmlinux.gz \
--set-section-flags=.image=contents,alloc,load,readonly,data $< $@
targets += image.o
$(obj)/image.o: $(obj)/dummy.o $(images)/vmlinux.gz FORCE
$(call if_changed,genimage)
# Place the ramdisk in the initrd image.
quiet_cmd_genimage-initrd = GEN $@
cmd_genimage-initrd = $(OBJCOPY) $< $@ \
--add-section=.ramdisk=$(images)/ramdisk.image.gz \
--set-section-flags=.ramdisk=contents,alloc,load,readonly,data
targets += image.initrd.o
$(obj)/image.initrd.o: $(obj)/image.o $(images)/ramdisk.image.gz FORCE
$(call if_changed,genimage-initrd)
targets += crt0.o
$(obj)/crt0.o: $(common)/crt0.S FORCE
$(call if_changed_dep,as_o_S)
quiet_cmd_gen-chrp = CHRP $@
cmd_gen-chrp = $(LD) $(CHRP_LD_ARGS) -o $@ $(CHRPOBJS) $< $(LIBS) && \
$(OBJCOPY) $@ $@ -R .comment $(del-ramdisk-sec)
$(images)/zImage.chrp: $(obj)/image.o $(CHRPOBJS) $(LIBS) \
$(srctree)/$(boot)/ld.script
$(call cmd,gen-chrp)
$(images)/zImage.initrd.chrp: $(obj)/image.initrd.o $(CHRPOBJS) $(LIBS) \
$(srctree)/$(boot)/ld.script
$(call cmd,gen-chrp)
quiet_cmd_addnote = ADDNOTE $@
cmd_addnote = cat $< > $@ && $(utils)/addnote $@
$(images)/zImage.chrp-rs6k $(images)/zImage.initrd.chrp-rs6k: \
%-rs6k: %
$(call cmd,addnote)
# The targets used on the make command-line
.PHONY: zImage zImage.initrd
zImage: $(images)/zImage.chrp \
$(images)/zImage.chrp-rs6k
@echo ' kernel: $@ is ready ($<)'
zImage.initrd: $(images)/zImage.initrd.chrp \
$(images)/zImage.initrd.chrp-rs6k
@echo ' kernel: $@ is ready ($<)'
TFTPIMAGE := /tftpboot/zImage
.PHONY: znetboot znetboot.initrd
znetboot: $(images)/zImage.chrp
cp $(images)/zImage.chrp $(TFTPIMAGE).chrp$(END)
@echo ' kernel: $@ is ready ($<)'
znetboot.initrd:$(images)/zImage.initrd.chrp
cp $(images)/zImage.initrd.chrp $(TFTPIMAGE).chrp$(END)
@echo ' kernel: $@ is ready ($<)'
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